Attachment for knitting-machines.



I.A.RUTH. v ATTACHMENT FOR KNITIING MACHINES.

APPLICATION FILED AUG.3I, I911. I 1,299,6%1 tent d Apr. 8,1919.

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J. A. RUTH.

ATTACHMENT FOR KNITTING MACHINES.

APPLICATION FILED AUG.3I, I917.

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IN l/E IV 70/? J7M5 ,4, Ha TH Patnted Apr. 8, 1919.

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JAMES A. RUTH, OF MARION, NORTH CAROLINA, ASSIGNOR TO SCOTT A ND WILLIAMS,

INC., 01? YORK, Y., A CORPORATION OF MASSACHUSETTS.

ATTACHMENT FOR KNITTING-MACHINES.

" Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed August 31, 1917. Serial No. 189,092.

structed to facilitate knitting upon transferred fabric sections, as where the ribbed cuff of a half hose knitted uponone circular knitting machine is transferred to the needles of another circular knitting machine to knit thereto the body and foot of the hose. 7

The object of my invention is to render more certain the automatic beginning of the knitting on this second machine, and this object I attain byproviding an attachment which takes up the slack of the yarn left from the previous knitting operation and which yarn is to be fed to the needles for the new knitting operation.

In the accompanying drawings,

Figure 1 is a side elevation of sufficient of a. knitting head to illustrate the application of my improvement hereto;

Fig. 2 is a plan view drawn to a larger scale;

Fig. 3 is a perspective view of iny attachment;

Figs. 4 and 5 are skeleton views illustrating the manner in which my improvement insures the feed of the yarn to the proper needles at the beginning of a new operation.

The knitting elements may be\ of any usual construction, and I have indicated at 260 a needle cylinder, above which is the latch guard ring 550, pivoted to a standard 401 on the frame 552, and adaptedto' be automatically raised at the appropriate time by the action of a cam on the cam drum 120 through the medium of a thrust bar 4 and to be drawn down to the position shown in the drawings by means of a spiral spring 6, when the rotation of the cam drum 120 permits, all as fully described in the Scott Patent No. 1,194,674, August 15, 1916. I

The latchi ring 550 is shown as carrying an internal yarn guide plate 602 with any suitabl operated yarn cutter 613' and a -yarn camp 606 to clamp to the top of the plate 602 the cut end of the yarn coming from the pivoted yarn feed guide F, as set forth .in the Scott Patent No. 1,150,547.

The pivoted yarn guides F are raised to:

take the yarn away from the needles N at appropriate times by suitable thrust bars such as 460, under the action of cams upon the drum 120, as usual.

The yarn on its way to the yarn guide F- is passed through an eye or eyes in a fixed yarn guide plate 50 and in connection with this fixed yarn guide is provided my attachment acting to take u the slack of the yarn as left from a precedlng knitting operation.

This take-up attachment may conveniently be made of wire as shown and comprises a standard 51 secured by a screw 52 or otherwise to the plate 50, and affording a horizontal pivot 53 for the coiled wire lever 54. This lever 54 has at one end a thread-guiding arm 55, and at the other s end an arm 56, which is adapted to be acted on by a bent wire finger 57. When this finger 57 is raised the'thread guiding arm 55' will be raised to take .up the slack of the thread.

I\ have found it convenient to mount this thrust finger 57 upon. a lever 701 which is pivoted at 610 to the latch ring 550. This. lever 701 is shown and described in the Scott patents before mentioned as carrying a needle resser 700 to'press the needles over at t e appropriate time to take the yarn at the beginning of a new knitting dies. by its thrust bar, and the yarn is severed by the cutter 613, and the end is clamped automatically under the clamp 606.

When at the beginning of the next knitting? on this machine as in the case where a ribbed cuff has been transferred to the needles, and the latch ring with its parts is lowered to its normal horizontal position,

and the yarn guide F is dropped to the yarn-feeding position shown in Fig. 4, there will be more or less slack in the yarn. That slack is liable to be such that the yarn will curl over the needle tops as indicated in Fig. 4 and consequently the needles will fail to take the yarn. By providing the takeup devices which I have described and actuating them at the moment when the appropriate needles are to take the yarn for the new knitting operation, the yarn X is with certainty drawn into the path of the needles, which then proceed with the knitting.

I claim as my invention 1. A knitting machine, having in combination a knitting cylinder, a series of needles, a movable yarn guide for moving the yarn into and out of feeding relation to the needles, a yarn clamp and a movable take-up device acting on the yarn on its Way to said guideand means for operating said take-up device to automatically take up the slack of the yarn at said guide, when the latter is returned to the yarn-feeding position.

2. A knitting machine having in combination a knitting cylinder, a series of needles, a'movable yarn guide for moving the yarn into and out of feeding relation to the needles, a movable latch ring carrying a yarn clamp and a movable take-up device and means for operating it to automatically take up the slack of the yarn at the yarn guide when the latter is returned to the yarn-feeding position.

3. A knitting machine having in combination a knitting cylinder, a series of needles, a movable yarn guide for moving the yarn-into and out of feeding relation to the needles, a yarn clamp, a movable take-up device and means for operating it to automatically take up the slack of the yarn at said yarn guid'e when the latter is returned tothe yarn-feeding position, and a needle-pressing device acting in timed relation with said take-up, for the purpose set forth. y

In testimony whereof I have signed my name to this specification.

JAMES A. RUPH. 

